textproduct: Quad Cities
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Quiet weather expected through the weekend.
- Outside of yet another system centered around Wednesday, mainly dry conditions are forecast to prevail until late next week.
SHORT TERM /THROUGH SUNDAY/
Issued at 1242 AM CDT Sat Aug 22 2026
Deep northwesterly flow aloft across the Upper Midwest through Sunday with high pressure shifting eastward from the Plains across the area. This will bring quiet weather to the area through the weekend. Today and Sunday are forecast to have similar high temperatures with slightly cooler temperatures on Sunday. The biggest change will be dewpoints falling into the upper 50s to lower 60s on Sunday resulting in lower humidity. Gusty winds are expected today with high pressure to our west and north to northwesterly winds of 10 to 14 MPH and gusts up to 25 MPH.
LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/
Issued at 1242 AM CDT Sat Aug 22 2026
Northwesterly flow aloft is forecast to continue through much of the next week with some operational models showing a transition to more zonal flow across the CONUS to end the next week. Although there are numerous disturbances moving through the flow passing near to the area the next chance (20 to 35%) for showers and storms appears to be late Tuesday night through Wednesday when a stronger shortwave moves across the region. Rainfalls will be light with forecast probability of a tenth of an inch of rain or more near 0 percent.
Monday is expected to be the coolest day of the period with high temperatures in the mid to upper 70s and low temperatures in the mid to upper 50s. High temperatures the rest of the week are forecast to be in the lower to mid 80s. Monday night onward, low temperatures are forecast to be in the lower to mid 60s.
AVIATION /00Z TAFS THROUGH 00Z SUNDAY/
Issued at 541 PM CDT Fri Aug 21 2026
Eastern Iowa TAF sites are forecast to remain on the east side of high pressure that builds southward to near the Iowa/Nebraska border by 18 UTC Saturday. This will lead to VFR conditions through the period. This will keep winds north to northwesterly around 5 to 10 knots. After 15 UTC Saturday, gusty winds are forecast to develop with speeds of 10 to 12 knots and gusts up to 20 knots through the afternoon. Additionally, diurnally driven cumulus are forecast to develop. Winds are expected to diminish after 22 UTC.
DVN WATCHES/WARNINGS/ADVISORIES
IA...None. IL...None. MO...None.
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